4.
Which of the following is an example of biotic factor in an ecosystem?
A. Rock
C. Sunlight
B. Stream
D. Tree
5. What do you call the physical location of an ecosystem in which a given species lives?
A. Habitat
C. Biotic Factor
B. Level Niche
D. Tropical Level
6. Which of the following contributes the biggest impact on the environment?
A. Predation
C. Human interference
B. Competition
D. Migration of organisms
7. Which phrase BEST describes ecosystem?
A. Individual cells
C. Interactions among cells
B. Individual organisms D. Interactions among organisms
8. Which of the following is an abiotic factor that may affect the population of organisms
A. Parasites
C. Food availability
B. Predators
D. Extreme temperatures
9. Which of the following is an example of changes in abiotic factor?
A. Air
C. Water
B. Soil
D Wildfire
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